The Air Canada maintenance loophole is back in the spotlight after a new CBC Go Public investigation found the airline told passengers their flights were scrapped for safety work, even though the planes they were booked on were later flown somewhere else. If your flight has ever been cancelled with a vague "maintenance" email, this one hits close to home.

What CBC found

According to CBC News, Ottawa traveller Juan Rojas had a flight from Montreal to Bogotรก cancelled, and Air Canada refused him compensation by citing safety-related maintenance. Rojas pushed back through the Canadian Transportation Agency and won. The reporters then found three more passengers with nearly identical stories, bringing the total to four cases.

In each one, Air Canada said the cancellation came from safety maintenance, which is a legal reason for an airline to skip paying out. But flight records showed the aircraft originally assigned to those trips was healthy and got used on other routes. Air Canada declined an interview, though it gave CBC a written statement.

How the Air Canada maintenance loophole works

Canada's Air Passenger Protection Regulations say passengers can be owed up to one thousand dollars when a delay or cancellation is within the airline's control. The catch is that the airline owes nothing if the disruption was required for safety. Consumer lawyer Sylvie De Bellefeuille, director of legal services at Option consommateurs, called the exemption "a huge duffel bag in which they can put anything and everything," according to CBC.

Her point is that travellers rarely have the information to fight back. An email saying a plane needs repairs is hard to check from an airport gate. Most people simply accept it and move on, which is exactly why advocates see the rule as lopsided.

The catering truck twist

The Rojas case has a wild detail. When he challenged the denial, Air Canada submitted documents saying a catering truck had struck and damaged his plane. A friend then told him to check the public aviation occurrence reporting system run by Transport Canada, and he realized the damaged aircraft was not the one assigned to his flight.

Air Canada later told CBC that Rojas's aircraft was moved to cover for the damaged one. In January, a CTA complaint resolution officer ordered the airline to pay him one thousand dollars. The officer wrote that swapping aircraft to avoid or minimize delays for one group of passengers at the expense of another is a commercial decision, which still means compensation is owed.

"I felt like they were trying to cheat the system," Rojas told Go Public. Advocate Gabor Lukacs of Air Passenger Rights went further, saying the airline kept up what he called a fraudulent falsehood even in front of a decision-maker.

Air Canada's side

The airline does not deny the swaps. In its written response, it acknowledged that in all four cases it reassigned a working plane to a route where the scheduled aircraft needed safety maintenance. It argued that aircraft schedules are fluid and that it must make operational adjustments to minimize the overall impact on passengers, so it believes it is within its rights to deny compensation.

Lukacs disputes that reading. He points to a twenty twenty-two CTA decision saying a mechanical problem must be a direct cause of a cancellation, not a knock-on effect. It is worth noting that the investigation does not prove every aircraft swap makes an airline liable, and each case turns on its own facts.

No fines and no public decisions

Here is where the story gets frustrating. The CTA told CBC it has never penalized Air Canada for incorrectly describing a cancellation as safety-related maintenance, and no fine was issued in the Rojas case. Lukacs argues that without consequences, it is cheaper for an airline to bend the rules than to follow them.

The agency also does not publish its decisions on air passenger disputes, despite a recent court order requiring it to do so. A CTA spokesperson cited privacy concerns and said publication should begin early next year. CBC previously reported on similar WestJet cases, and the agency launched an investigation into those, but the full scale of the practice across Canada's two biggest airlines is still unknown.

What travellers can do now

Advocates want Ottawa to copy the European Union, where airlines can avoid paying for mechanical disruptions only in narrow, extraordinary situations. CBC reports that records obtained through access to information show past transport ministers telling the CTA to keep the current exemption in place, and Transport Minister Steven MacKinnon declined an interview.

Until the rules change, the practical move is to keep every email and boarding pass, ask the airline for the aircraft registration if safety work is cited, and check flight-tracking records. The CTA's own air passenger protection guide explains that choice of aircraft and scheduled maintenance count as within the airline's control. For more stories like this, browse our world coverage.

Rojas has been paid, but he wonders about everyone else booked on that same flight. That open question is why the Air Canada maintenance loophole debate is unlikely to fade soon, especially as holiday travel season approaches and cancellations pile up.